type:Acquisition added to the KG

We've added support for type:Acquisition in the graph. To see all acquisitions sorted by most to least recent see: https://app.diffbot.com/search/?query=type%3AAcquisition+revSortBy%3Adate&from=0&size=25

You can view a sample acquisition record here: https://app.diffbot.com/entity/Ezw5giKVqNZmMQ7DI97txyg